package day02;

public class LongDemo {
    public static void main(String[] args) {
        //超出int取值范围所以报错,不超出可自动小转大;
        long a =25;
        System.out.println(a);
        long b=200000000000L;
        int d =2000000000;
        long e =2000000000*3*10L;
        long c =20000000000L*3*10;
        long f =3L*10*2000000000;
        long A =3*10*2000000000L;
        System.out.println(f);
        System.out.println(A);
    }
}
